Why Chemistry is the Biggest Hurdle in MCAT Prep For many pre-med students, chemistry is the toughest subject on the MCAT. With complex concepts in general chemistry, organic chemistry, and biochemistry, it’s no surprise that many test-takers feel overwhelmed. Common Struggles Students Face Difficulty applying formulas under time pressure Memorizing countless reactions in organic chemistry Balancing multiple subjects while focusing on chemistry-heavy passages Why Strong Chemistry Skills Matter Nearly 25% of the MCAT includes chemistry-related questions. Without a strong foundation, it’s hard to push your score into the competitive range. That’s where an MCAT prep class in NY or personalized MCAT tutoring makes all the difference.